测绘通报 ›› 2021, Vol. 0 ›› Issue (7): 59-64.doi: 10.13474/j.cnki.11-2246.2021.0209

• 学术研究 • 上一篇    下一篇

顾及地形邻域影响的地质灾害风险易发区评估

徐刚1,2, 胡坤霖3, 温剑峰2, 徐登财4, 戴欣宜1, 陈杰1, 朱安峰2, 章豪2, 苏宗奎2   

  1. 1. 中南大学地球科学与信息物理学院, 湖南 长沙 410083;
    2. 浙江安防职业技术学院, 浙江 温州 325016;
    3. 中南大学计算机学院, 湖南 长沙 410083;
    4. 温州市地质环境监测中心, 浙江 温州 325000
  • 收稿日期:2021-03-16 出版日期:2021-07-25 发布日期:2021-08-04
  • 通讯作者: 陈杰。E-mail:cj2011@csu.edu.cn
  • 作者简介:徐刚(1980-),男,博士生,教授,主要从事地理空间信息技术在自然灾害和城市安全领域的应用研究。E-mail:xugang68@163.com

Assessment of disaster-prone areas considering the influence of terrain and neighborhood

XU Gang1,2, HU Kunlin3, WEN Jianfeng2, XU Dengcai4, DAI Xinyi1, CHEN Jie1, ZHU Anfeng2, ZHANG Hao2, SU Zongkui2   

  1. 1. School of Geosciences and Info-physics, Central South University, Changsha 410083, China;
    2. Zhejiang College of Security Technology, Wenzhou 325016, China;
    3. School of Computer Science and Engineering, Central South University, Changsha 410083, China;
    4. Wenzhou Geological Environment Monitoring Center, Wenzhou 325000, China
  • Received:2021-03-16 Online:2021-07-25 Published:2021-08-04

摘要: 地质灾害发生时通常会带来巨大的人力物力损害,而易发区评估是防灾减灾的重要手段。为了尽可能减少灾害带来的经济损失和人员伤亡,本文在GIS的支持下开展地质灾害风险评估研究。具体结合温州市自然地理状况及相关受灾情况历史数据,分析高程因子、坡度因子、坡向因子等地质灾害影响因子,提出了综合邻近环境的地质灾害分析方法,利用层次分析方法计算各因子权重,构建了温州市滑坡灾害易发性评价指标体系,确定了温州市地质灾害易发区;同时还研究了山区、平原不同地形条件下的地质灾害风险规律。

关键词: 地质灾害, 易发评价, GIS, 邻近影响, 不同地形

Abstract: Geological disasters usually cause huge human and material damages. Evaluation of disaster-prone areas is an important means of disaster prevention and mitigation. In order to minimize the economic losses and casualties caused by disasters, this paper carries out geological disaster risk assessment research with the support of GIS. Based on the physical geography of Wenzhou city and historical data of related disasters, we analyze the influence factors of geological disasters such as elevation factors, slope factors, and aspect factors. Furthermore, we propose a comprehensive analysis method of geological disasters in the adjacent environment, and use the analytic hierarchy method to calculate the weight of each factor. We also construct the evaluation index system of Wenzhou landslide hazard susceptibility to determine Wenzhou's geological hazard prone areas. At the same time, the law of geological disaster risk under different terrain conditions in mountainous and plains is also studied. The results show that the high-risk areas in Wenzhou are mainly located in the middle and high mountains in the west, and the low-risk areas are mainly located in the eastern plains. This result can serve the disaster prevention and control work in Wenzhou.

Key words: geological hazard, vulnerability evaluation, GIS, neighboring influence, different terrains

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